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BOSTON MARATHON 2023

Fergal Byrne

Bib: 2768•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M45-49)
#0 / 2252
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:29
Rank: #2809
Start → 5K
20:29 | 6:36/mi
10K· 6.21 mi
40:51
Rank: #2963 (-154)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:17
Rank: #3006 (-43)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:21:44
Rank: #2911 (+95)
15K → 20K
20:27 | 6:35/mi
Half· 13.11 mi
1:26:09
Rank: #2888 (+23)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:00
Rank: #2780 (+108)
Half → 25K
15:51 | 6:32/mi
30K· 18.64 mi
2:02:42
Rank: #2649 (+131)
25K → 30K
20:42 | 6:40/mi
20M
2:11:45
Rank: #2583 (+66)
30K → 20M
9:03 | 6:40/mi
21M
2:18:44
Rank: #2518 (+65)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:23:21
Rank: #2436 (+82)
21M → 35K
4:37 | 6:10/mi
23M
2:31:39
Rank: #2377 (+59)
35K → 23M
8:18 | 6:38/mi
24M
2:38:06
Rank: #2333 (+44)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:43:49
Rank: #2304 (+29)
24M → 40K
5:43 | 6:41/mi
25.2M
2:46:16
Rank: #2292 (+12)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:52:55
Rank: #2256 (+36)
25.2M → Finish
6:39 | 6:32/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:09
Pace6:34 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:46
Pace6:37 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3820:296:3620:29
6:36
-
10K
6.21 mi10:43:0040:516:3420:22
6:33
-0:03
15K
9.32 mi11:03:261:01:176:3520:26
6:35
+0:02
20K
12.43 mi11:23:531:21:446:3520:27
6:35
0:00
Half
13.11 mi11:28:181:26:096:344:25
6:28
-0:07
25K
15.53 mi11:44:091:42:006:3415:51
6:32
+0:04
30K
18.64 mi12:04:512:02:426:3520:42
6:40
+0:08
20M
20.00 mi12:13:542:11:456:359:03
6:40
0:00
21M
21.00 mi12:20:532:18:446:366:59
6:59
+0:19
35K
21.75 mi12:25:302:23:216:354:37
6:10
-0:49
23M
23.00 mi12:33:482:31:396:368:18
6:38
+0:28
24M
24.00 mi12:40:152:38:066:356:27
6:27
-0:11
40K
24.85 mi12:45:582:43:496:355:43
6:41
+0:14
25.2M
25.20 mi12:48:252:46:166:362:27
7:06
+0:25
Finish
26.22 mi12:55:042:52:556:366:39
6:32
-0:34

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:10 /mi

Average Pace

6:36 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:29

95% of race

Time at Steady Pace

9:26

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:36 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:3820:296:3620:29
6:36
#2809
10K
6.21 mi10:43:0040:516:3420:22
6:33
#2963
15K
9.32 mi11:03:261:01:176:3520:26
6:35
#3006
20K
12.43 mi11:23:531:21:446:3520:27
6:35
#2911
Half
13.11 mi11:28:181:26:096:344:25
6:28
#2888
25K
15.53 mi11:44:091:42:006:3415:51
6:32
#2780
30K
18.64 mi12:04:512:02:426:3520:42
6:40
#2649
20M
20.00 mi12:13:542:11:456:359:03
6:40
#2583
21M
21.00 mi12:20:532:18:446:366:59
6:59
#2518
35K
21.75 mi12:25:302:23:216:354:37
6:10
#2436
23M
23.00 mi12:33:482:31:396:368:18
6:38
#2377
24M
24.00 mi12:40:152:38:066:356:27
6:27
#2333
40K
24.85 mi12:45:582:43:496:355:43
6:41
#2304
25.2M
25.20 mi12:48:252:46:166:362:27
7:06
#2292
Finish
26.22 mi12:55:042:52:556:366:39
6:32
#2256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2809267226723090(Top 12%)2944(Top 19%)2944(Top 131%)
10K6.21 mi3.10 mi2963-1542826-1542826-1543152(Top 12%)3004(Top 20%)3004(Top 133%)
15K9.32 mi3.11 mi3006-432865-392865-393090(Top 12%)2944(Top 19%)2944(Top 131%)
20K12.43 mi3.11 mi2911+952781+842781+842726(Top 10%)2606(Top 17%)2606(Top 116%)
Half13.11 mi0.68 mi2888+232756+252756+252587(Top 10%)2481(Top 16%)2481(Top 110%)
25K15.53 mi2.42 mi2780+1082657+992657+992365(Top 9%)2265(Top 15%)2265(Top 101%)
30K18.64 mi3.11 mi2649+1312529+1282529+1282230(Top 8%)2126(Top 14%)2126(Top 94%)
20M20.00 mi1.36 mi2583+662467+622467+622114(Top 8%)2015(Top 13%)2015(Top 89%)
21M21.00 mi1.00 mi2518+652411+562411+562076(Top 8%)1962(Top 13%)1962(Top 87%)
35K21.75 mi0.75 mi2436+822333+782333+781184(Top 4%)1128(Top 7%)1128(Top 50%)
23M23.00 mi1.25 mi2377+592274+592274+591892(Top 7%)1794(Top 12%)1794(Top 80%)
24M24.00 mi1.00 mi2333+442232+422232+421898(Top 7%)1784(Top 12%)1784(Top 79%)
40K24.85 mi0.85 mi2304+292205+272205+272269(Top 9%)2107(Top 14%)2107(Top 94%)
25.2M25.20 mi0.35 mi2292+122195+102195+102111(Top 8%)1967(Top 13%)1967(Top 87%)
Finish26.22 mi1.02 mi2256+362161+342161+342596(Top 10%)2382(Top 16%)2382(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3090

Males

2944

M45-49

2944

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3152

Males

3004

M45-49

3004

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3090

Males

2944

M45-49

2944

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2726

Males

2606

M45-49

2606

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2587

Males

2481

M45-49

2481

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2365

Males

2265

M45-49

2265

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2230

Males

2126

M45-49

2126

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2114

Males

2015

M45-49

2015

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2076

Males

1962

M45-49

1962

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1184

Males

1128

M45-49

1128

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1892

Males

1794

M45-49

1794

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1898

Males

1784

M45-49

1784

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2269

Males

2107

M45-49

2107

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2111

Males

1967

M45-49

1967

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2596

Males

2382

M45-49

2382

Passing Analysis

Category:
Athletes Passed
1068
Passed By
515
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2809
5K → 10K99253-154#2809#2963
10K → 15K75118-43#2963#3006
15K → 20K13237+95#3006#2911
20K → Half285+23#2911#2888
Half → 25K12416+108#2888#2780
25K → 30K14817+131#2780#2649
30K → 20M8014+66#2649#2583
20M → 21M7712+65#2583#2518
21M → 35K820+82#2518#2436
35K → 23M7112+59#2436#2377
23M → 24M484+44#2377#2333
24M → 40K4011+29#2333#2304
40K → 25.2M164+12#2304#2292
25.2M → Finish4812+36#2292#2256
TOTALS1068515+553
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing